/Engine/Plugins/Experimental/Mutable/Source/CustomizableObject/Public/MuCO/CustomizableObjectInstanceDescriptor.h
Return true if this Hash is a subset of the other Hash (i.e., this Descriptor is a subset of the other Descriptor).
bool IsSubset ( const [FDescriptorRuntimeHash](API\Plugins\CustomizableObject\MuCO\FDescriptorRuntimeHash) & Other ) const